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Old 11-15-2007, 06:22 PM
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Harry Hirsute Harry Hirsute is offline
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Default More Evidence - Dark Chocolate is Heart Healthy

The evidence is overwhelming, IMO. Dark chocolate is an marvelous food that promotes heart health and much, much more - provided that the actual cacao isn't packaged with a lot of refined sugar or other health-vampires.

[quote]BACKGROUND: -Dark chocolate has potent antioxidant properties.



Coronary atherosclerosis is promoted by impaired endothelial function and increased platelet activation.

Traditional risk factors, high oxidative stress, and reduced antioxidant defenses play a crucial role in the pathogenesis of atherosclerosis, particularly in transplanted hearts. Thus, flavonoid-rich dark chocolate holds the potential to have a beneficial impact on graft atherosclerosis.

Methods and Results-We assessed the effect of flavonoid-rich dark chocolate compared with cocoa-free control chocolate on coronary vascular and platelet function in 22 heart transplant recipients in a double-blind, randomized study.

Coronary vasomotion was assessed with quantitative coronary angiography and cold pressor testing before and 2 hours after ingestion of 40 g of dark (70% cocoa) chocolate or control chocolate, respectively.

Two hours after ingestion of flavonoid-rich dark chocolate, coronary artery diameter was increased significantly (from 2.36+/-0.51 to 2.51+/-0.59 mm, P<0.01), whereas it remained unchanged after control chocolate.

Endothelium-dependent coronary vasomotion improved significantly after dark chocolate (4.5+/-11.4% versus -4.3+/-11.7% in the placebo group, P=0.01).

Platelet adhesion decreased from 4.9+/-1.1% to 3.8+/-0.8% (P=0.04) in the dark chocolate group but remained unchanged in the control group.


Conclusions-
Dark chocolate induces coronary vasodilation, improves coronary vascular function, and decreases platelet adhesion 2 hours after consumption.

These immediate beneficial effects were paralleled by a significant reduction of serum oxidative stress and were positively correlated with changes in serum epicatechin concentration.

PMID: 17984375 [PubMed - as supplied by publisher]

Dark Chocolate - From Villain to Hero
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Old 11-15-2007, 11:57 PM
JonB JonB is offline
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Dark Chocolate is Heart Healthy
Only in SMALL quantities.
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